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From "Ufuk Celebi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-5274) LocalInputChannel throws NPE if partition reader is released
Date Wed, 07 Dec 2016 12:14:58 GMT
Ufuk Celebi created FLINK-5274:
----------------------------------

             Summary: LocalInputChannel throws NPE if partition reader is released
                 Key: FLINK-5274
                 URL: https://issues.apache.org/jira/browse/FLINK-5274
             Project: Flink
          Issue Type: Bug
          Components: Network
            Reporter: Ufuk Celebi
            Assignee: Ufuk Celebi


Reported by [~rmetzger]:

{code}
java.lang.NullPointerException
       at org.apache.flink.runtime.io.network.partition.consumer.LocalInputChannel.getNextBuffer(LocalInputChannel.java:185)
       at org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNextBufferOrEvent(SingleInputGate.java:444)
       at org.apache.flink.streaming.runtime.io.BarrierBuffer.getNextNonBlocked(BarrierBuffer.java:152)
       at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:195)
       at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:67)
       at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:267)
       at org.apache.flink.runtime.taskmanager.Task.run(Task.java:638)
       at java.lang.Thread.run(Thread.java:745)
{code}

This is most likely caused by the result partition being released after the notifcations have
happened.



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